nin is OSS-only (mem0/vector_stores/pgvector.py), absent from
docs/openapi.json and docs/platform/features/v2-memory-filters.mdx.
Nested AND/OR/NOT is also not identical: OSS implicitly ANDs flat
top-level filter keys, while Platform requires the explicit wrapper
once more than one condition is combined. Moves both into the
Configuration & data operations comparison table instead of the
shared "What's the same" list.
kartik-mem0